油田专用密封垫 SF-HNBR 成都森发橡塑有限公司

p1Src=//y1.yzimgs.com/uploads_old/305161/2013121816432726_old.jpg&p2Src=//y1.yzimgs.com/uploads_old/305161/2013121816432726_old_1.jpg